# N172CH: Zank Don CHALLENGER II, registration cancelled 1993-11-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 17, 1993
- Status when cancelled: Second triennial mailing, no response
- Airframe: [Zank Don CHALLENGER II](https://openairdocs.org/model/zank-don-challenger-ii) (registry code 05613RG)
- Serial number: CH20985B0172
- Type of aircraft: Fixed wing single engine
- Certificate issued: November 1, 1985
- Last registry action: March 30, 1991
- Mode S code: A120D5
- Owner when cancelled: [Zank Don](https://openairdocs.org/faa-owner/ZANK%20DON)
- Location: [Black River Falls, WI](https://openairdocs.org/faa-place/WI/Black%20River%20Falls)
- Owner type: Individual
- Owner's area on the map: 44.2664° N, 90.7842° W: Placed by OpenAirDocs at the center of ZIP code 54615, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N172CH
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=172CH
- Page: https://openairdocs.org/deregistered/N172CH-1993-11-17

From the FAA registry file of November 7, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Zank Don CHALLENGER II: https://openairdocs.org/model/zank-don-challenger-ii.md

## Other aircraft with N172CH

- [Registered now](https://openairdocs.org/aircraft/N172CH): Cessna 172L, S/N 17260288, built 1971

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.